Well, you need a furnace that will go to 1500 deg centigrade!!!! And that is not something you can do at home. At UCSB I do have such a furnace because I am a Volcanologist and I study magma and volcanic eruptions.

You can use wax to simulate magma or you can buy a lava lamp!!

You can't make magma. You need heat and pressures of the sort that you only get in the deep interior of the Earth, as well as rocks that are found down there. While you could get the temperature in the laboratory, and there is some of the right kind of rock around on the surface, you won't get the pressure.